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Published on: January 4, 2014
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Dengue incidence trend in Brazil, 2002-2012
Andrea Wendt Böhm1, Caroline Dos Santos Costa1, Rosália Garcia Neves1
1Universidade Federal de Pelotas, Programa de Pós-Graduação em Epidemiologia, Pelotas-RS, Brasil.
Summary
Dengue incidence in Brazil remained high between 2002 and 2012, despite stable rates in most states. The North Region showed an increasing trend, highlighting the need for new public health strategies to control dengue.
Area of Science:
- Epidemiology
- Public Health
Background:
- Dengue poses a significant public health challenge in Brazil.
- Understanding incidence trends is crucial for effective control strategies.
Purpose of the Study:
- To analyze the dengue incidence trend in Brazil from 2002 to 2012.
- To identify regional variations in dengue incidence rates.
Main Methods:
- Ecological study utilizing data from the Information System for Notifiable Diseases (Sinan).
- Incidence rates were calculated by age groups, states, and macroregions.
- Prais-Winsten regression was employed to analyze trends.
Main Results:
- Dengue incidence rates in Brazil decreased from 401.6 to 301.5 per 100,000 inhabitants between 2002 and 2012.
- Annual increment rates were generally stable, with exceptions in Alagoas and Tocantins.
- The North Region was the only area exhibiting an increasing trend in dengue incidence.
Conclusions:
- Despite overall stability, dengue incidence remains high in Brazil.
- Targeted public health policies and novel control strategies are essential.
- The increasing trend in the North Region requires specific attention.
